CSS LLC/IL's ownership history for BIIB

CSS LLC/IL currently holds 7.8K shares with a market value of $1.1M. It started holding BIIB on 2025-03-31. At its peak, it held 7.8K shares on 2025-09-30. Its highest holding value was $1.1M on 2025-09-30. At its lowest, it held 3.7K shares on 2025-03-31, with a value of $510.4K on 2025-03-31. In the recent 180 days, CSS LLC/IL has increased its shares by 4.0K.